#39B559
Closest named color: Cool Green (#33B864). oklch(68.4% 0.17 148.3), rgb(57, 181, 89).
Aa
Black text reads best on this color (7.92:1).
About this color
#39B559 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.170 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.013 away. Black text reads best on it, at 7.92:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 7.92:1 |
| White text | 2.64:1 |
Values
| HEX | #39B559 |
| RGB | rgb(57, 181, 89) |
| HSL | hsl(135, 52%, 47%) |
| OKLCH | oklch(68.4% 0.17 148.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #39B559 | 2.64:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #39B559 | 7.92:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #39B559 text on white | 2.64:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #39B559 text on black | 7.92:1 | AAA | Lc -50.8 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#EFF8F0
oklch(97% 0.014 148.8)
-
Step 100
100
#DDF0DF
oklch(93.6% 0.03 148.4)
-
Step 200
200
#C0E5C4
oklch(88.6% 0.059 148.1)
-
Step 300
300
#90D49A
oklch(80.9% 0.106 148.3)
-
Step 400
400 (this color)
#39B559
oklch(68.4% 0.17 148.3)
-
Step 500
500
#00A543
oklch(63% 0.181 148.3)
-
Step 600
600
#008B37
oklch(55.5% 0.16 148.3)
-
Step 700
700
#00752D
oklch(49.1% 0.141 148.2)
-
Step 800
800
#006024
oklch(42.7% 0.122 148.4)
-
Step 900
900
#00501C
oklch(37.6% 0.109 148.1)
-
Step 950
950
#00300E
oklch(27% 0.077 148.3)
#39B559 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #B7A551 | 0.137 |
| Deuteranopia (no green cones) | #A89B60 | 0.135 |
| Tritanopia (no blue cones) | #00B1A0 | 0.098 |
| Achromatopsia (no color) | #9F9F9F | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39B559
#39B559
oklch(68.4% 0.17 148.3)
- #D06ECE
#D06ECE
oklch(68.3% 0.171 328)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #39B559, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.013
- Shamrock #01B44C ΔE 0.024
- Dark Pastel Green #56AE57 ΔE 0.025
- Medium Green #39AD48 ΔE 0.026
- Jade Green #2BAF6A ΔE 0.031
- Leafy Green #51B73B ΔE 0.031
- Medium Sea Green #3CB371 ΔE 0.032
- Dark Mint Green #20C073 ΔE 0.036
Use #39B559 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.